INNOVAX-ILT HVT/ILT-138 (marek's disease and avian infectious laryngotracheitis disease vaccine (live recombinant)) is a veterinary vaccine used to protect chickens against Infectious Laryngotracheitis (ILT). Provides long-term protection against ILT, eliminating the need for field boosts. Helps reduce mortality, clinical signs, and lesions caused by the virus.